Wrench



B. MYER AND 1. BROWN.

WRENCH.-

APPLICATION FILED DEC-21.1921.

2 1,536. Patented July 1922 .5, age

BERT MYER AND JOHN BROWN, OF- ELKHA'RT, KANSAS.

WRENCH.

Application filed December 21, 1921-.

To all whom it may concern:

Be it known that we, BERT MYER and J OHN BROWN, citizens of the United States, residing at Elkhart, in the county of Morton and State of Kansas, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

The present invention relates to wrenches and the object is to provide a nut wrench capable of being quickly adjusted and when adjusted having means whereby relatively movable jaws are locked effectively against accidental relative movement.

The preferred embodiment of the invention is illustrated in the accompanying drawings, wherein Figure l is a side elevation of the wrench, with the jaws in fixed relation,

Figure 2 is a plan view of the same,

Figure 8 is a view partly in section and showing the adjustable jaw released,

Figure 4 is a sectional view on the line -l% of Figure 3, with the jaw shank locked,

Figure 5 is a view similar to Figure at, but showing the jaw shank free for adjustment.

In the disclosure, a stock 6 is employed having a handle 7 and a slightly offset terminal jaw 8 extending generally longitudinally of the handle and fixed with relation thereto.

The jaw portion is provided with a transverse opening 9 therethrough, in which is mounted the shank 10 of a movable jaw 11 that coacts with the jaw 8. In the opening 9 are located sets of oppositely disposed teeth 12, and the shank 10 is provided with oppositely disposed sets of teeth 13. The shank is rotatable in the opening, and when so rotated the teeth 13 thereof move into and out of interfitting relation with the teeth 12 of the opening. When out of interfitting relation the jaw 11 is at right angles to the jaw 8, and when in interfitting relation the said jaw 11 is in coacting relation with said jaw 8. When the teeth are out of interlocked engagement the shank is freely slidable in. the opening, as will be evident by reference to Figure 5.

When the movable aw 11 is held by reason of the interfitting of the teeth 12 and 13, said shank and aw may be fixed against rotation by means of fingers or wedges 1 1 that are carried by a swinging latch 15 pivoted, as shown at 16, to the stock 6. These fingers Specification of Letters .latent.

Patented. July t, 1922.

Serial No. 523,891.

or wedges 14 pass into the opening 9 on opposite sides of theshank, said sides being flat and smooth, as illustrated. The latch 15 is preferably provided with finger-pieces 1.7, by means of which it can be conveniently swung.

lVith this structure, when it is desired to adjust the jaw 11 with relation to the jaw S, the latch is swung to the position illustrated in Figure 3, the shank 10 is turned until the teeth are free and the jaw is adjusted as desired. After such adjustment the jaw is turned until the teeth are in interfitting relation and the latch is then swung to its active position, whereby the movable jaw is effectively locked.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art, without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A wrench comprising a stock having a guide opening provided with teeth, a jaw having a shank slidable and rotatable in the opening and provided with teeth that move into and out of interlocking engagement with the teeth of the stock on the rotation of the shank, and a holding device that enters the opening to prevent the rotation of the shank.

2. A wrench comprising a stock having a guide opening provided with teeth, a jaw having a shank slidable and rotatable in the opening and provided with teeth that move into and out of interlocking engagement with the teeth of the stock on the rotation of the shank, and a holding latch pivoted on the stock and having a portion that enters the opening to prevent the rotation of the shank.

3. A wrench comprising a stock having a guide opening provided with teeth, a jaw having a shank slidable and rotatable in the opening and provided with teeth that move into and out of interlocking engagement with the teeth of the stock on the rotation of the shank, and a holding latch pivoted on the stock and having portions that jaw having an angularly disposed shank slidable and rotatable in the opening, said shank and opening having sets of oppositely disposed teeth that move into and out of interfitting-relation on the rotation of the shank, and a latch pivoted on the handle and having spaced Wedges that enter the opening on opposite sides of the shank When the teeth are interfitted to prevent the shank from 15 being rotated.

In testimony whereof, We afiix our signatures 1n the presence of two wltnesses.

BERT MYER. JOHN BROWN.

Witnesses:

WALTER SWAIN, V R. B. MAYs. 

